save project

snake.py

@@ -9,17 +9,36 @@ screen = pygame.display.set_mode((660, 480))
 FPSCLOCK=playgame.tim.time.Clock();
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading = right
+snake_head = right
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+left = pygame.image.load('left.png')
+up =  pygame.image.load('up.png')
+down =  pygame.image.load('down.png')
 while True:
     for event in pygame.event.get():
-        if event.type == locals.QUIT:
+        if event.type == QUIT:
             # 接收到退出事件后退出程序
+
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading != "left":
+                setheading = 'right'
+                snake_head=right
+            if event.key == locals.K_LEFT and setheading !="right"
+                setheading='left'
+                snake_head=left
+            if event.key == locals. K_UP and setheading !="down"
+                setheading='up'
+                snake_head=up
+            if event.key == locals.K_DOWN and setheading !="up"
+                setheading='down'
+                snake_head=down
+                     
     x+=30
     position.append((x,y))
     position.pop(0)